One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when you can plant purple rock cress in Homer Glen by checking out the USDA zone info.

Planting Calendar for Purple Rock Cress

Frost tolerance for purple rock cress:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since purple rock cress do well in cold you can plant them quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant purple rock cress in Homer Glen is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant purple rock cress and expect a good harvest is probably September. You probably don't want to wait any later than that or else your purple rock cress may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your purple rock cress indoors.

Last Frost Date

The average date of last frost is April 15 in Homer Glen. It might get as low as -15°F during the coldest months of winter.

Keep in mind that USDA zone info for Homer Glen is not always accurate and the actual date of last frost is different every year. Since half of the time in Homer Glen you get surprised by a frost after April 15 be ready to protect your purple rock cress in the event of a surprise late frost.

USDA Zone Info for Homer Glen

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Homer Glen

You may be interested in your other planting guides for Homer Glen.